EXAMINATION ON YIELD AND SOME YIELD ASSOCIATED PARAMETERS IN DIFFERENT RICE GENOTYPES
The aim of this paper was to evaluate the grain yield and some yield related traits in different rice genotypes grown in the Republic of Macedonia. Nine rice genotypes (Prima Riska, 78/12-3-1, 79/22-2, Ronaldo, Onice, Opale, Gloria, Pato and San Andrea) were used for this research. All rice genotypes were from Italy except Prima Riska variety and two promising lines (78/12-3-1 and 79/22-2) which have Macedonia origin. The field experiments were carried out during 2014 and 2015 on the field areas in Kocani, Republic of Macedonia. Each genotype was set up on 5 m2 test area in three repetitions in randomized block design. Grain yield and some important yield associated traits, like plant height, panicle length, 1 000 grain weight and the number of plants per m2 were evaluated. This study investigated the effect of genotype and environment, but also and their interaction on the grain yield. Besides the importance of genotype, the analysis of variance showed that the grain yield was strongly affected by environmental conditions (over 87 %). The average grain yield for all tested genotypes during the period of study was 6 100 kg/ha.
Key words: grain yield, rice, agronomic traits, genotype